Wi-Fi 6 is here, here are two major design challenges

alan000345

Wi-Fi 6 is here, here are two major design challenges [Copy link]

Technology is constantly improving, so here comes Wi-Fi 6. Compared with previous generations of Wi-Fi standards, Wi-Fi 6 incorporates many new technologies. Wi-Fi 6 has undergone major upgrades in bandwidth, frequency band, antenna and other aspects. Well-known mobile phone manufacturers such as Samsung, LG, Huawei, OPPO, Vivo and Xiaomi have upgraded the specifications of Wi-Fi communication to Wi-Fi 6. With the promotion of terminal devices, the popularity and penetration of Wi-Fi 6 will be deeper and wider in the next two years.

Wi-Fi 6 will be so popular in the future, so what challenges will it face in design? Let's take a closer look:

1. Due to regulations and restrictions on wireless communications in different regions, this brings problems to WiFi product design, which also requires developers to think deeply.

Current wireless communication regulations can be categorized into two types: one is the US regulation (FCC-Federal Communication Commission) and the other is the European regulation (CE-Conformité Européene).

Second, devices with higher efficiency and higher transmission rates require more complex and high-specification designs.

This requires developers to improve system design and costs such as layout, plate stacking, material selection, etc. to reduce or overcome signal interference issues. As for the introduction of MU-MIMO, the number of streams of Wi-Fi devices has increased from 2x2, 3x3, 4x4 and even 8x8. The most direct problem this brings is the mutual interference that may be caused when signals from different channels are transmitted to the receiver at the same time, and the heat dissipation caused by the overall power consumption of the multi-channel streaming system.

In response to the above challenges, Qorvo has created a product line called iFEM (Integrated FEM). iFEM, as the name implies, integrates the Bandedge or LTE Co-existence filter mentioned above into the front-end RF module of Wi-Fi 6, which not only simplifies the design of the wireless RF front-end, but also reduces component costs and line matching adjustment time.

In 2019, the Wi-Fi Alliance officially named this extended 6GHz frequency band Wi-Fi 6E.

The greater bandwidth supported by Wi-Fi 6E brings unlimited imagination to network communication equipment manufacturers, especially for enterprise-level (Enterprise) and public hotspot (Wi-Fi Hotspot) applications.

Taking advantage of the newly opened Wi-Fi 6E frequency band with 1.2GHz bandwidth and less interference, some network equipment vendors have begun planning to use this frequency band to build a "backhaul network" between APs.

OK. That’s all I have to share with you. For more highlights, please click on Qorvo’s Opportunities and Challenges of WiFi 6 to learn more about the technology
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toothache

The country is promoting 5G now! Don’t talk about anything that conflicts with 5G technology.

alan000345

toothache posted on 2020-6-15 09:25 The country is now promoting 5G! Don't say anything that has technical conflicts with 5G

This does not conflict with 5G. 5G is for outdoor use, while wifi6 is for indoor use.